With some minor moves made like Weurtz and Hill traded, I have decided to update the 25 man roster.
The Cubs main concern on this team is the pen. They have several solid guys to pitch out there. You have Guzman who is out of options, Samardzija who deserves to be there but won't be unless he wins the starting job, Waddell or Stranton who should be in the pen as the 2nd lefty with Marshall starting, and you really can't switch Marshall out with another righty in the rotation because Lou wants balance in the rotation as well. The only way you could work this is have Heilman in the rotation and Marshall in the pen. That way you have two leftys in the pen and keep Guzman in there as well. But the problem with that is Marshall deserves the 5th spot in the pen and Lou wants two leftys in the rotation.
I will keep updating this as other moves are made through out spring training.